kevlar is the name of a material that was created for the company Dupont in 1965 by the US inventor Stephanie Kwolek during a research program that the firm was carrying out in the attempt of producing new synthesis polymers suitable for being used in manufacturing.
The kevlar fibre is regarded as one of the most important synthesis polymers available worldwide in industry. A set of useful characteristics, like resistance, capability of absorbing vibrations, hardness, and lightness makes kevlar suitable for large number of industrial uses.
Kevlar, if weighted in air, is five times lighter than steel, if immersed in water, twenty-one. It is often used to protect cables and reinforce linking structures under the sea. In automotive design it can provide a strong protective covering for the tyres. It can also be used instead of the dangerous and potentially harmful metal asbestos in the clutch, in the brakes and other parts of the engine of the car. In combination with other materials Kevlar is used in the production of airplanes, ships, and sport equipment. In the telecommunications field it is a fundamental component for fibre optics cables.
The kevlar polymer has been on the market since 1972 with the trade mark Kevlar. It is sold in form of ribbon, filament, and mass. Additional versions of the kevlar fibre developed by Dupont include: Kevlar ee, Kevlar er e Kevlar rtp.